GrueDetector.cpp Example File

gruedetector/src/GrueDetector.cpp

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****************************************************************************/#include "GrueDetector.hpp"#include <QtCore/QDebug>#include <QtCore/QTimer>
GrueDetector::GrueDetector(QObject*parent)
: QObject(parent)
, m_chance(0)
, m_darkTimer(newQTimer(this))
{
// At first we have to connect to the sensor backend...if (!m_sensor.connectToBackend()) {
qWarning() <<"Cannot connect to light sensor backend!";
}
// ... and then add a filter that will process the reported data
m_sensor.addFilter(this);
// Start the gathering of data
m_sensor.start();
connect(m_darkTimer, SIGNAL(timeout()),this, SLOT(increaseChance()));
}
bool GrueDetector::filter(QLightReading*reading)
{
if (reading->lux() <10) { // Dark enough for meeting a Grueif (!m_darkTimer->isActive())
m_darkTimer->start(1000);
} else { // everything is fine...
m_darkTimer->stop();
m_chance =0;
emit chanceChanged();
}
// Do no further processing of the sensor datareturnfalse;
}
void GrueDetector::increaseChance()
{
// Increase the chance put keep it at 100% max
m_chance =qBound(0, m_chance +10,100);
emit chanceChanged();
}
int GrueDetector::chance() const
{
return m_chance;
}

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